/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraParameterMapHistory.h
Does the variable start with this namespace?
namespace FNiagaraParameterUtilities { bool FNiagaraParameterUtilities::IsInNamespace ( const [FNiagaraVariableBase](API\Plugins\Niagara\FNiagaraVariableBase) & InVar, const [FString](API\Runtime\Core\Containers\FString) & Namespace ) }